长波红外光学材料的研究进展

Research Progress of Long-wavelength Infrared Optical Materials

红外光学材料是红外技术应用的基础之一.适用于8～12μm波段的长波红外光学材料具有广阔的应用前景.本文介绍了几类常用的长波红外光学材料的基本性质,简述了其制备技术及发展现状,讨论了它们各自存在的问题.文章指出未来研究重点在于复合型红外光学材料的设计和制备,大尺寸Ⅱ-Ⅵ族化合物单晶的生长,碱卤化合物晶体保护膜技术以及新型硫系玻璃的开发.

Infrared optical material is a foundation for the application of infrared technologies. Longwavelength infrared optical materials, which can be used suitably in the infrared region from 8pro to 12μm, have important application prospect. Several kinds of long-wave infrared optical materials currently available are introduced in this paper. The fabrication techniques and the research status of these materials are reviewed. The problems related to their fabrication and applications are also discussed. Finally, it is recommended that the progress trends in long-wavelength infrared optical materials will be focused on the design and preparation of composite infrared optical materials, the growth technology of large-size II-VI compounds single crystals, the technology of protecting films used for alkali halides compounds crystals and the development of new chalcogenide glass.